diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-04 13:35:45 -0500 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-10 12:22:10 -0500 |
| commit | 7e1413edd6194a9807aa5f3ac0378b9b4b9da879 (patch) | |
| tree | 8357aadd8a15de615bf2fbb39cbd412a9697d165 /kernel/trace/trace_events.c | |
| parent | 0e2b81f7b52a1c1a8c46986f9ca01eb7b3c421f8 (diff) | |
tracing: Consolidate trace_add/remove_event_call back to the nolock functions
The trace_add/remove_event_call_nolock() functions were added to allow
the tace_add/remove_event_call() code be called when the event_mutex
lock was already taken. Now that all callers are done within the
event_mutex, there's no reason to have two different interfaces.
Remove the current wrapper trace_add/remove_event_call()s and rename the
_nolock versions back to the original names.
Link: http://lkml.kernel.org/r/154140866955.17322.2081425494660638846.stgit@devbox
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index a3b157f689ee..bd0162c0467c 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -2305,7 +2305,8 @@ __trace_early_add_new_event(struct trace_event_call *call, struct ftrace_module_file_ops; static void __add_event_to_tracers(struct trace_event_call *call); -int trace_add_event_call_nolock(struct trace_event_call *call) +/* Add an additional event_call dynamically */ +int trace_add_event_call(struct trace_event_call *call) { int ret; lockdep_assert_held(&event_mutex); @@ -2320,17 +2321,6 @@ int trace_add_event_call_nolock(struct trace_event_call *call) return ret; } -/* Add an additional event_call dynamically */ -int trace_add_event_call(struct trace_event_call *call) -{ - int ret; - - mutex_lock(&event_mutex); - ret = trace_add_event_call_nolock(call); - mutex_unlock(&event_mutex); - return ret; -} - /* * Must be called under locking of trace_types_lock, event_mutex and * trace_event_sem. @@ -2376,8 +2366,8 @@ static int probe_remove_event_call(struct trace_event_call *call) return 0; } -/* no event_mutex version */ -int trace_remove_event_call_nolock(struct trace_event_call *call) +/* Remove an event_call */ +int trace_remove_event_call(struct trace_event_call *call) { int ret; @@ -2392,18 +2382,6 @@ int trace_remove_event_call_nolock(struct trace_event_call *call) return ret; } -/* Remove an event_call */ -int trace_remove_event_call(struct trace_event_call *call) -{ - int ret; - - mutex_lock(&event_mutex); - ret = trace_remove_event_call_nolock(call); - mutex_unlock(&event_mutex); - - return ret; -} - #define for_each_event(event, start, end) \ for (event = start; \ (unsigned long)event < (unsigned long)end; \ |